* @throws CIFSException if authentication fails
     */
    byte[] authenticate(CIFSContext context, byte[] challenge) throws CIFSException;

    /**
     * Gets the session key after successful authentication
     *
     * @return the session key or null if not available
     */
    byte[] getSessionKey();

    /**
     * Gets the signing key for SMB2/3
     *

     *
     * @param buffer the buffer containing the signature data
     * @param i the starting index in the buffer
     * @param size the size of the signature data
     * @return whether signature verification is successful
     */
    boolean verifySignature(byte[] buffer, int i, int size);

    /**
     * Checks if signature verification failed.
     *
     * @return whether signature verification failed
     */

            contextHandle = new byte[20];
        }
        buf.readOctetArray(contextHandle, 0, 20);
    }

    /**
     * Checks if the context handle has been invalidated (all zeros).
     * A successful unregistration typically results in a zeroed context handle.
     *
     * @return true if the context handle has been invalidated
     */
    public boolean isContextHandleInvalidated() {

                .singleton("msPowerPointExtractor", MsPowerPointExtractor.class)
                .singleton("textExtractor", TextExtractor.class);
    }

    /**
     * Test that MsWordExtractor properly closes resources on successful extraction.
     */
    public void test_MsWordExtractor_closesResourcesOnSuccess() throws IOException {
        final MsWordExtractor extractor = container.getComponent("msWordExtractor");

     */
    public void setReturnCode(int returnCode) {
        this.returnCode = returnCode;
    }

    /**
     * Checks if the RPC operation was successful.
     *
     * @return true if successful (return code is ERROR_SUCCESS)
     */
    public boolean isSuccess() {
        return returnCode == ERROR_SUCCESS;
    }

    /**

                response.setRegistrationId(registrationId);
                response.setContextHandle(contextHandle);

                log.debug("Witness registration successful: {}", registrationId);
            } else {
                response.setError(message.getErrorMessage());
                log.warn("Witness registration failed: {}", message.getErrorMessage());
            }

    @Test
    void testInitWithNullProperties() throws CIFSException {
        // Test successful initialization with null properties
        assertDoesNotThrow(() -> SingletonContext.init(null));
        assertNotNull(SingletonContext.getInstance());
    }

    @Test
    void testInitWithCustomProperties() throws CIFSException {
        // Test successful initialization with custom properties
        Properties props = new Properties();

     * Set the associated file object
     * @param file the file object
     */
    public void setFile(Object file) {
        this.file = file;
    }

    /**
     * Update the file ID after successful create response
     * @param newFileId the new 16-byte file ID
     */
    public void updateFileId(byte[] newFileId) {
        if (newFileId.length != 16) {

    }

    /**
     * Executes the search log aggregation job.
     * Stores search logs using the SearchLogHelper and returns execution results.
     *
     * @return execution result message, empty if successful or error message if failed
     */
    public String execute() {
        final SearchLogHelper searchLogHelper = ComponentUtil.getSearchLogHelper();

        final StringBuilder resultBuf = new StringBuilder();

     */
    public long getSequenceNumber() {
        return sequenceNumber;
    }

    /**
     * Gets the response sequence number returned by the server.
     * This should match the request sequence number in a successful response.
     *
     * @return the response sequence number
     */
    public long getResponseSequenceNumber() {
        return responseSequenceNumber;
    }

    /**